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Ring laser gyroscope

About: Ring laser gyroscope is a research topic. Over the lifetime, 2070 publications have been published within this topic receiving 18609 citations. The topic is also known as: Sagnac interferometer.


Papers
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Proceedings ArticleDOI
01 Mar 1991
TL;DR: In this article, the phase jump instability in the He:Ne ring laser gyroscope was discussed and the behavior of the phase difference and the time-averaged beat frequency between the two counterpropagating modes with and without the effects of laser noise.
Abstract: We discuss recent theoretical and experimental work concerning the phase jump instability in the He:Ne ring laser gyroscope. The exact solution to the deterministic third-order equations for the laser yields an expression for the phase difference between the two counterpropagating modes. This phase difference can be constant monotonically increase oscillate be unstable or exhibit discontinuities. Experiments and computer solutions of the stochastic laser equations show corresponding phase jumps which can be very rapid but not truly discontinuous. We discuss the behavior of the phase difference and of the timeaveraged beat frequency between the two modes with and without the effects of laser noise.
Journal ArticleDOI
TL;DR: In this paper, the Sagnac effect is associated with the shift of fringe order one in an interferometer due to the rotation of a plane, homogeneous and transverse electromagnetic wave through an optically active medium, at rest in an inertial frame or on a uniformly rotating disc.
Patent
17 Jun 2015
TL;DR: In this paper, a polishing method of a laser gyroscope cavity diaphragm hole is described, and the polishing purpose is achieved by pulling the polisher rope back and forth while adding the powder.
Abstract: The invention belongs to an optical machining technology, and relates to a polishing method of a laser gyroscope cavity diaphragm hole The polishing method of the laser gyroscope cavity diaphragm hole is characterized in that a polishing rope with specific parameters is selected; the polishing rope penetrates through the diaphragm hole and the diaphragm hole is filled with the polishing rope; polishing powder is added on the polishing rope; and the polishing purpose is achieved by pulling the polishing rope back and forth while adding the polishing powder The polishing method is verified by experiments, and is applied to a laser gyroscope of a certain model number; the long/short shaft ratio error can be controlled within 002; compared with the chemical polishing, the polishing method increases the surface roughness by more than 10 times; the precision can reach Ra 002 micron; and the machining precision of an elliptic hole is greatly improved In addition, the polishing method can realize synchronous polishing of multiple cavities, so that the automation degree is high, and the production efficiency is prominently improved; and the polishing method is suitable for the polishing development and the large-batch production of medium- and high-precision laser gyroscope cavity diaphragm holes
Proceedings ArticleDOI
30 May 2022
TL;DR: In this paper , a method for dynamic correction of the scale factor for Zeeman laser gyroscopes has been developed, which consists in creating a model of the real frequency response of the gyroscope based on the values of the dissipative and conservative backscattering components.
Abstract: A method for dynamic correction of the scale factor for Zeeman laser gyroscopes has been developed. The method consists in creating a model of the real frequency response of the gyroscope based on the values of the dissipative and conservative backscattering components. This method makes it possible to calculate with high accuracy the true value of the scale factor of a laser gyroscope depending on the angular velocity of its rotation.

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202347
202275
202130
202062
201963
201841